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Q3-A)- Indicate whether the following statements are true or false and correct the false statements 1-The efficiency of a transformer at load 0.8 p.f. Lag is more than at load 0.8 p.f. Lead 2- No load current in a transformer lags behind the voltage by about 15° 3- There is no output from the transformer under short-circuit conditions 4-. The full-load copper loss and iron loss of transformer are 800w and 600w respectively, the copper loss and iron loss at half load will be 400w and 300w respectively

Q3-A)- Indicate whether the following statements are true or false and correct the false statements 1-The efficiency of a transformer at load 0.8 p.f. Lag is more than at load 0.8 p.f. Lead 2- No load current in a transformer lags behind the voltage by about 15° 3- There is no output from the transformer under short-circuit conditions 4-. The full-load copper loss and iron loss of transformer are 800w and 600w respectively, the copper loss and iron loss at half load will be 400w and 300w respectively

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q3-A)- Indicate whether the following statements are true or false and correct the false statements 1-The efficiency of a transformer at load 0.8 p.f. Lag is more than at load 0.8 p.f. Lead 2- No load current in a transformer lags behind the voltage by about 15° 3- There is no output from the transformer under short-circuit conditions 4-. The full-load copper loss and iron loss of transformer are 800w and 600w respectively, the copper loss and iron loss at half load will be 400w and 300w respectively
Transcribed Image Text:Q3-A)- Indicate whether the following statements are true or false and correct the false statements 1-The efficiency of a transformer at load 0.8 p.f. Lag is more than at load 0.8 p.f. Lead 2- No load current in a transformer lags behind the voltage by about 15° 3- There is no output from the transformer under short-circuit conditions 4-. The full-load copper loss and iron loss of transformer are 800w and 600w respectively, the copper loss and iron loss at half load will be 400w and 300w respectively
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